Staff Sgt. Steven Raethel, 374th Operations Support Squadron Survival, Evasion, Resistance and Escape specialist, teaches water survival refresher training recently at the Natatorium Indoor Pool at Yokota Air Base, Japan. Survival, evasion, resistance and escape technicians teach the course to aircrew members at least once every three years. The training is especially important for Yokota aircrews, who routinely fly long distances over large bodies of water in the Pacific Rim. (U.S. Air Force photo/Osakabe Yasuo)